@Override
 protected final void doFix(Project project, ProblemDescriptor descriptor)
     throws IncorrectOperationException {
   final PsiElement element = descriptor.getPsiElement();
   final PsiTypeElement castTypeElement;
   final PsiReferenceExpression reference;
   if (element instanceof PsiTypeCastExpression) {
     final PsiTypeCastExpression typeCastExpression = (PsiTypeCastExpression) element;
     castTypeElement = typeCastExpression.getCastType();
     final PsiExpression operand = typeCastExpression.getOperand();
     if (!(operand instanceof PsiReferenceExpression)) {
       return;
     }
     reference = (PsiReferenceExpression) operand;
   } else if (element instanceof PsiMethodCallExpression) {
     final PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression) element;
     final PsiReferenceExpression methodExpression = methodCallExpression.getMethodExpression();
     final PsiExpression qualifier = methodExpression.getQualifierExpression();
     if (!(qualifier instanceof PsiClassObjectAccessExpression)) {
       return;
     }
     final PsiClassObjectAccessExpression classObjectAccessExpression =
         (PsiClassObjectAccessExpression) qualifier;
     castTypeElement = classObjectAccessExpression.getOperand();
     final PsiExpressionList argumentList = methodCallExpression.getArgumentList();
     final PsiExpression[] arguments = argumentList.getExpressions();
     if (arguments.length != 1) {
       return;
     }
     final PsiExpression argument = arguments[0];
     if (!(argument instanceof PsiReferenceExpression)) {
       return;
     }
     reference = (PsiReferenceExpression) argument;
   } else {
     return;
   }
   if (castTypeElement == null) {
     return;
   }
   final PsiInstanceOfExpression conflictingInstanceof =
       InstanceOfUtils.getConflictingInstanceof(castTypeElement.getType(), reference, element);
   final PsiTypeElement instanceofTypeElement = conflictingInstanceof.getCheckType();
   if (instanceofTypeElement == null) {
     return;
   }
   final PsiElement newElement = replace(castTypeElement, instanceofTypeElement);
   final JavaCodeStyleManager codeStyleManager = JavaCodeStyleManager.getInstance(project);
   codeStyleManager.shortenClassReferences(newElement);
 }
 @Override
 public void visitMethodCallExpression(PsiMethodCallExpression expression) {
   super.visitMethodCallExpression(expression);
   final PsiReferenceExpression methodExpression = expression.getMethodExpression();
   final String methodName = methodExpression.getReferenceName();
   if (!"cast".equals(methodName)) {
     return;
   }
   final PsiMethod method = expression.resolveMethod();
   if (method == null) {
     return;
   }
   final PsiClass containingClass = method.getContainingClass();
   if (containingClass == null) {
     return;
   }
   final String qualifiedName = containingClass.getQualifiedName();
   if (!"java.lang.Class".equals(qualifiedName)) {
     return;
   }
   final PsiExpression qualifier = methodExpression.getQualifierExpression();
   if (!(qualifier instanceof PsiClassObjectAccessExpression)) {
     return;
   }
   final PsiClassObjectAccessExpression classObjectAccessExpression =
       (PsiClassObjectAccessExpression) qualifier;
   final PsiTypeElement operand = classObjectAccessExpression.getOperand();
   final PsiType castType = operand.getType();
   if (!(castType instanceof PsiClassType)) {
     return;
   }
   final PsiExpressionList argumentList = expression.getArgumentList();
   final PsiExpression[] arguments = argumentList.getExpressions();
   if (arguments.length != 1) {
     return;
   }
   final PsiExpression argument = arguments[0];
   if (!(argument instanceof PsiReferenceExpression)) {
     return;
   }
   final PsiReferenceExpression referenceExpression = (PsiReferenceExpression) argument;
   final PsiInstanceOfExpression conflictingInstanceof =
       InstanceOfUtils.getConflictingInstanceof(castType, referenceExpression, expression);
   if (conflictingInstanceof == null) {
     return;
   }
   final PsiTypeElement instanceofTypeElement = conflictingInstanceof.getCheckType();
   registerError(expression, referenceExpression, operand, instanceofTypeElement);
 }
 @Override
 public void visitTypeCastExpression(@NotNull PsiTypeCastExpression expression) {
   super.visitTypeCastExpression(expression);
   final PsiTypeElement castType = expression.getCastType();
   if (castType == null) {
     return;
   }
   final PsiType type = castType.getType();
   final PsiExpression operand = expression.getOperand();
   if (!(operand instanceof PsiReferenceExpression)) {
     return;
   }
   final PsiReferenceExpression referenceExpression = (PsiReferenceExpression) operand;
   final PsiInstanceOfExpression conflictingInstanceof =
       InstanceOfUtils.getConflictingInstanceof(type, referenceExpression, expression);
   if (conflictingInstanceof == null) {
     return;
   }
   final PsiTypeElement instanceofTypeElement = conflictingInstanceof.getCheckType();
   if (instanceofTypeElement == null) {
     return;
   }
   registerError(expression, referenceExpression, castType, instanceofTypeElement);
 }